Naslov
Radio Observations of 2002 Perseids and Correlation with Visual Observations

Autori
Jurkić, Tomislav ; Pintarić, Senka

Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni

Izvornik
Proceedings of the International Meteor Conference / Olech, A., Zloczewski, K., Mularczyk, K. - : International Meteor Organization, 2003

Skup
International Meteor Conference

Mjesto i datum
Frombork, Poljska, 26.09.2002. - 29.09.2002

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
meteor; forward scattering; radio observations; video observations

Sažetak
Simultaneous radio and visual observations of the 2002 Perseid meteor shower were performed. Radio observations were made using the forward scattering method with a commercial TV transmitter and two antennas - a Yagi and two stacked dipoles. We made visual observations using the IMO standard and recorded the appearance time of each meteor. We performed echo duration measurements and the radio-echo activity profile obtained shows the maximum activity at the solar longitude of 139.95 deg and no double peaks. There is a good agreement between the radio observations and the visual observations, both in the activity profile and population index. The population index distribution from radio observations was obtained with the maximum of r=1.71+-0.03 at the solar longitude of 140.10 deg, which corresponds to the visual and radio activity profile maximum. The mean population index of the Perseid shower for the night of the maximum is r=1.95+-0.04 for Perseids and r=2.75+-0.07 for sporadic pre-Perseid meteors. A correlation with the exponential dependence between the radio echo duration and the visual magnitude was established and the regression coefficient were calculated. An echo duration of 0.100 seconds corresponds to magnitude +5.7+-0.4, with limiting magnitude of 6.0+-0.6 for the experimental setup. A clustering analysis of 377 visual meteors showed a low level clustering effect, while an analysis of 1610 radio echoes showed strong clustering possibilities.

Izvorni jezik
Engleski

Znanstvena područja
Fizika

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